22000012243 has 6 divisors (see below), whose sum is σ = 24181831772. Its totient is φ = 20000011020.

The previous prime is 22000012169. The next prime is 22000012267. The reversal of 22000012243 is 34221000022.

It is not a de Polignac number, because 22000012243 - 2¹³ = 22000004051 is a prime.

It is a super-3 number, since 3×22000012243³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000012283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90909021 + ... + 90909262.

Almost surely, 2^22000012243 is an apocalyptic number.

22000012243 is a deficient number, since it is larger than the sum of its proper divisors (2181819529).

22000012243 is a wasteful number, since it uses less digits than its factorization.

22000012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181818305 (or 181818294 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22000012243 its reverse (34221000022), we get a palindrome (56221012265).

The spelling of 22000012243 in words is "twenty-two billion, twelve thousand, two hundred forty-three".